Question

$cos20°-sin20° = \sqrt{2} sin25°$ Don't spam!!
Answer fast please!!​

Answer 1

Answer:

cos20-sin20

cos(90-70)-sin20

sin70-sin2o

2cos(70+20)/2.sin(70-20)/2

2cos45.sin25

2×1/✔2 .sin25

✔2 .sin25